<template>
	<div class="app-container">
		<el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch"
			label-width="68px">
			<el-form-item label="父级分类" prop="parentId">
				<el-select v-model="queryParams.parentId" placeholder="请选择父级分类" clearable @change="handleQuery">
					<el-option v-for="item in productCategoryFatherList" :key="item.id" :label="item.name" :value="item.id" />
				</el-select>
			</el-form-item>
			<el-form-item label="分类名称" prop="name">
				<el-input v-model="queryParams.name" placeholder="请输入分类名称" clearable
					@keyup.enter.native="handleQuery" />
			</el-form-item>
			<el-form-item label="分类描述" prop="description">
				<el-input v-model="queryParams.description" placeholder="请输入分类描述" clearable
					@keyup.enter.native="handleQuery" />
			</el-form-item>
			<el-form-item>
				<el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
				<el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
			</el-form-item>
		</el-form>

		<el-row :gutter="10" class="mb8">
			<el-col :span="1.5">
				<el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
					v-hasPermi="['product:productCategory:add']">新增</el-button>
			</el-col>
			<el-col :span="1.5">
				<el-button type="success" plain icon="el-icon-edit" size="mini" :disabled="single" @click="handleUpdate"
					v-hasPermi="['product:productCategory:edit']">修改</el-button>
			</el-col>
			<el-col :span="1.5">
				<el-button type="danger" plain icon="el-icon-delete" size="mini" :disabled="multiple"
					@click="handleDelete" v-hasPermi="['product:productCategory:remove']">删除</el-button>
			</el-col>
			<el-col :span="1.5">
				<el-button type="warning" plain icon="el-icon-download" size="mini" @click="handleExport"
					v-hasPermi="['product:productCategory:export']">导出</el-button>
			</el-col>
			<right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
		</el-row>

		<el-table v-loading="loading" :data="productCategoryList" @selection-change="handleSelectionChange">
			<el-table-column type="selection" width="55" align="center" />
			<el-table-column label="商品分类表id" align="center" prop="id" />
			<el-table-column label="父级分类" align="center">
			  <!-- 使用插槽自定义内容，通过scope获取当前行数据 -->
			  <template #default="scope">
			    <!-- 如果parentName存在则显示，否则显示"无" -->
			    {{ scope.row.parentName ? scope.row.parentName : '无' }}
			  </template>
			</el-table-column>
			<el-table-column label="分类名称" align="center" prop="name" />
			<el-table-column label="排序" align="center" prop="sort" />
			<el-table-column label="分类描述" align="center" prop="description" />
			<el-table-column label="商品分类图标" align="center" prop="image" width="100">
				<template slot-scope="scope">
					<image-preview :src="scope.row.image" :width="50" :height="50" />
				</template>
			</el-table-column>
			<el-table-column label="操作" align="center" class-name="small-padding fixed-width">
				<template slot-scope="scope">
					<el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)"
						v-hasPermi="['product:productCategory:edit']">修改</el-button>
					<el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)"
						v-hasPermi="['product:productCategory:remove']">删除</el-button>
				</template>
			</el-table-column>
		</el-table>

		<pagination v-show="total>0" :total="total" :page.sync="queryParams.pageNum" :limit.sync="queryParams.pageSize"
			@pagination="getList" />

		<!-- 添加或修改商品分类对话框 -->
		<el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
			<el-form ref="form" :model="form" :rules="rules" label-width="80px">
				<el-form-item label="父级分类" prop="parentId">
					<el-select v-model="form.parentId" placeholder="请选择父级分类" clearable @change="handleQuery">
						<el-option  label="无" :value="0" />
						<el-option v-for="item in productCategoryFatherList" :key="item.id" :label="item.name" :value="item.id" />
					</el-select>
				</el-form-item>
				<el-form-item label="分类名称" prop="name">
					<el-input v-model="form.name" placeholder="请输入分类名称" />
				</el-form-item>
				<el-form-item label="排序" prop="sort">
					<el-input v-model="form.sort" placeholder="请输入排序" />
				</el-form-item>
				<el-form-item label="分类描述" prop="description">
					<el-input v-model="form.description" placeholder="请输入分类描述" />
				</el-form-item>
				<el-form-item label="商品分类图标" prop="image">
					<image-upload v-model="form.image" />
				</el-form-item>
			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button type="primary" @click="submitForm">确 定</el-button>
				<el-button @click="cancel">取 消</el-button>
			</div>
		</el-dialog>
	</div>
</template>

<script>
	import {
		listProductCategory,
		getProductCategory,
		delProductCategory,
		addProductCategory,
		updateProductCategory,
		fatherListProductCategory
	} from "@/api/product/category"

	export default {
		name: "ProductCategory",
		data() {
			return {
				// 遮罩层
				loading: true,
				// 选中数组
				ids: [],
				// 非单个禁用
				single: true,
				// 非多个禁用
				multiple: true,
				// 显示搜索条件
				showSearch: true,
				// 总条数
				total: 0,
				// 商品分类表格数据
				productCategoryList: [],
				// 商品父级分类表格数据
				productCategoryFatherList: [],
				// 弹出层标题
				title: "",
				// 是否显示弹出层
				open: false,
				// 查询参数
				queryParams: {
					pageNum: 1,
					pageSize: 10,
					parentId: null,
					name: null,
					description: null,
				},
				// 表单参数
				form: {},
				// 表单校验
				rules: {
					id: [{
						required: true,
						message: "商品分类表id不能为空",
						trigger: "blur"
					}],
					parentId: [{
						required: true,
						message: "父级分类id不能为空",
						trigger: "blur"
					}],
					name: [{
						required: true,
						message: "分类名称不能为空",
						trigger: "blur"
					}],
					sort: [{
						required: true,
						message: "排序不能为空",
						trigger: "blur"
					}],
					image: [{
						required: true,
						message: "商品分类图标不能为空",
						trigger: "blur"
					}],
					del: [{
						required: true,
						message: "是否删除 0 正常 1删除不能为空",
						trigger: "blur"
					}]
				}
			}
		},
		created() {
			this.getList()
			this.getFatherList()
		},
		methods: {
			/** 查询商品父级分类列表 */
			getFatherList() {
				this.loading = true
				fatherListProductCategory().then(response => {
					this.productCategoryFatherList = response.rows
					this.loading = false
				})
			},
			/** 查询商品分类列表 */
			getList() {
				this.loading = true
				listProductCategory(this.queryParams).then(response => {
					this.productCategoryList = response.rows
					this.total = response.total
					this.loading = false
				})
			},
			// 取消按钮
			cancel() {
				this.open = false
				this.reset()
			},
			// 表单重置
			reset() {
				this.form = {
					id: null,
					parentId: null,
					name: null,
					sort: null,
					description: null,
					image: null,
					del: null
				}
				this.resetForm("form")
			},
			/** 搜索按钮操作 */
			handleQuery() {
				this.queryParams.pageNum = 1
				this.getList()
			},
			/** 重置按钮操作 */
			resetQuery() {
				this.resetForm("queryForm")
				this.handleQuery()
			},
			// 多选框选中数据
			handleSelectionChange(selection) {
				this.ids = selection.map(item => item.id)
				this.single = selection.length !== 1
				this.multiple = !selection.length
			},
			/** 新增按钮操作 */
			handleAdd() {
				this.reset()
				this.open = true
				this.title = "添加商品分类"
			},
			/** 修改按钮操作 */
			handleUpdate(row) {
				this.reset()
				const id = row.id || this.ids
				getProductCategory(id).then(response => {
					this.form = response.data
					this.open = true
					this.title = "修改商品分类"
				})
			},
			/** 提交按钮 */
			submitForm() {
				this.$refs["form"].validate(valid => {
					if (valid) {
						if (this.form.id != null) {
							updateProductCategory(this.form).then(response => {
								this.$modal.msgSuccess("修改成功")
								this.open = false
								this.getList()
                this.getFatherList()
							})
						} else {
							addProductCategory(this.form).then(response => {
								this.$modal.msgSuccess("新增成功")
								this.open = false
								this.getList()
                this.getFatherList()
							})
						}
					}
				})
			},
			/** 删除按钮操作 */
			handleDelete(row) {
				const ids = row.id || this.ids
				this.$modal.confirm('是否确认删除商品分类编号为"' + ids + '"的数据项？').then(function() {
					return delProductCategory(ids)
				}).then(() => {
					this.getList()
          this.getFatherList()
					this.$modal.msgSuccess("删除成功")
				}).catch(() => {})
			},
			/** 导出按钮操作 */
			handleExport() {
				this.download('product/productCategory/export', {
					...this.queryParams
				}, `productCategory_${new Date().getTime()}.xlsx`)
			}
		}
	}
</script>
